CakePHP - Lib to handle spatial data

GeoBehavior.php

<?php 
/**
 * GeoBehavior handles a set of operations generaly needed when working with coordinates
 *
 * @source https://gist.github.com/csrui/6173911
 * @url http://book.cakephp.org/2.0/en/Models/behaviors.html
 **/
class GeoBehavior extends ModelBehavior {
	
	public $settings = array();
	
	public function setup(Model $Model, $settings = array()) {
	    if (!isset($this->settings[$Model->alias])) {
	        $this->settings[$Model->alias] = array(
	            'field' => 'geo',
	        );
	    }
	    $this->settings[$Model->alias] = array_merge(
	        $this->settings[$Model->alias], (array)$settings);
	}

	/**
	 * Adds two virtual fields to model with Latitude and Logintude
	 *
	 **/
	public function beforeFind(Model $Model, $query) {

		$Model->virtualFields = array(
		    'lat' => sprintf('x(%s.%s)', $Model->alias, $this->settings[$Model->alias]['field']),
		    'lng' => sprintf('y(%s.%s)', $Model->alias, $this->settings[$Model->alias]['field'])
		);

		return parent::beforeFind($Model, $query);

	}

	/**
	 * Handles conversion of virtual lat and lng fields into spatial data field
	 *
	 **/
	public function beforeSave(Model $Model) {
		
		parent::beforeSave($Model);

		if (!empty($Model->data[$Model->alias]['lat']) && !empty($Model->data[$Model->alias]['lng'])) {

			$Model->data[$Model->alias][$this->settings[$Model->alias]['field']] = DboSource::expression(sprintf('POINT(%s, %s)', $Model->data[$Model->alias]['lat'], $Model->data[$Model->alias]['lng']));
		
		}

		return true;
		
	}	
	
}